Dog boot



FIG. 1 is a front view of a dog boot, according to the present design, shown with the flap and straps in a closed position;

FIG. 2 is a side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a second side view thereof; and,

FIG. 6 is a rear view thereof.

The dashed lines in FIGS. 1-3, 5 and 6 represent stitching. 

We claim the ornamental design for a dog boot, as shown and described. 